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Investment Income, Net (Tables) | 12 Months Ended
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May. 31, 2015
Investment Income, Net [Abstract] |
Schedule of Investment Income, Net | Investment income, net, consisted of the following items:
|  | Year ended May 31,
In millions |  | 2015 |  | 2014 |  | 2013
Interest income on corporate funds |  | $ | 7.8 |  |  | $ | 6.9 |  |  | $ | 6.7 |
Interest expense |  | (0.7 | ) |  | (1.1 | ) |  | (0.1 | )
Net loss from equity-method investments |  | (0.7 | ) |  | (0.4 | ) |  | — |
Investment income, net |  | $ | 6.4 |  |  | $ | 5.4 |  |  | $ | 6.6 |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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